How to plot a line between two points in a-frame? - object

Im trying to plot a line between two points in a-frame but I need to use javascript code, nor HTML code?
Somebody can help me
Thanks

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Add double lines in the middle of another svg line

so I have a drawing program and I need to implement a "broken line", it is an SVG line with two another lines in the middle of this line, these two line needs to cross perpendicularly to the principal line, maybe this picture can help me to explain the problem:
This line can be drawn in any angle that the user choose
I don't really understand svg's so I'm having a lot of trouble implementing this.
Thank you
So I discovered one way to implement that using polylines and calculating the middle of the source and target coordinates, so when it changes I change the middle point too. After that, I created a marker-mid with the double lines.

Python Seaborn: How to add mean into boxplot visualization?

I was able to visualize my data in a boxplot using Seaborn.
sns.boxplot( x=df['Score'].astype('float'), y=df['Group'] )
The visualization shows me: all four quartiles, lower and upper whisker, and some outliers. How can I also add the Mean line into the boxplots? See current visualization (without mean).
Thanks!
I just figured it out. The code works like this:
sns.boxplot(x=df['Score'].astype('float'), y=df['Group'],showmeans=True )

How to connect two points with a curved line in GNUplot?

Its basically what the question says. I know that using tikz in latex it would be something like:
\draw[thick,dashed] (0,0) to [out=15,in=165] (1,0)
I would appreciate any help.
I think you have a misunderstanding how lines in gnuplot work. They are always directly connecting points. So you have to ways of faking it:
1) adding additional points and connecting them to "pretend" to have a curved line
2) define a function with the curve you want and plot it over the points (in xrange of point 1 to 2)
What I had to do is to great a .tex file with everything else a needed and then, in the .tex file I add the "\draw[thick,dashed] (0,0) to [out=15,in=165] (1,0)". But I wish I could know how to do it using GNUplot itself.

Make plots inside the WXMaxima GUI

How can I make the plots generated from plotting functions (like plot2d() lie inside the WXMaxima GUI rather than open new Windows? Someone made this in front of me, and I can't find out how he made that.
Thank you.
Just put a "wx" in front of your plot command: use wxplot, wxdraw, wxdraw2d or similar instead of plot, draw or draw2d.

titles next to lines in gnuplot

The feature list for the new version of gnuplot states that "plot title can be placed next to the plot line in the graph proper." This is something I would like to be able to do automatically, but I can't find mention of how to do this in the documentation (probably because it hasn't been written yet). Does anyone know how to do this?
I found the answer in the command line documentation, I assume the pdf hasn't been updated yet. Here's the text:
If you want the title of a plotted line to be placed immediately before or
after that line in the graph itself, use `at {beginning|end}`. This option
may be useful when plotting `with lines` but makes little sense for some
other plot styles.

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